/* ===== Dark Mode Theme Variables ===== */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #30363d;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --warning: #eab308;
    --danger: #ef4444;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* ===== Base Styles ===== */
html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===== Links ===== */
a, .btn-link {
    color: var(--accent-primary);
}

a:hover {
    color: var(--accent-hover);
}

/* ===== Buttons ===== */
.btn-primary {
    color: #fff;
    background-color: var(--accent-primary);
    border: none;
    transition: background-color 0.15s ease;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--accent-primary);
}

/* ===== Content Area ===== */
.content {
    padding-top: 1.1rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
}

h1:focus {
    outline: none;
}

p {
    color: var(--text-secondary);
}

/* ===== Forms ===== */
.form-control, .form-select {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled, .form-control[disabled] {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
    opacity: 0.7;
}

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--success);
}

.invalid {
    outline: 1px solid var(--danger);
}

.validation-message {
    color: var(--danger);
}

/* ===== Cards ===== */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.card-body {
    color: var(--text-primary);
}

/* ===== Tables ===== */
.table {
    color: var(--text-primary) !important;
    --bs-table-bg: var(--bg-secondary);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
    --bs-table-striped-bg: var(--bg-tertiary);
    --bs-table-striped-color: var(--text-primary);
    --bs-table-hover-bg: var(--bg-hover);
    --bs-table-hover-color: var(--text-primary);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-bottom-color: var(--border-color);
}

.table thead th {
    background-color: var(--bg-tertiary) !important;
    border-bottom-color: var(--border-color) !important;
    color: var(--text-muted) !important;
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem;
}

.table tbody td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    color: var(--text-primary) !important;
    border-bottom-color: var(--border-color);
}

.table tbody tr {
    background-color: var(--bg-secondary);
}

.table tbody tr:hover {
    background-color: var(--bg-hover) !important;
}

.table tbody tr:hover td {
    background-color: var(--bg-hover) !important;
}

/* Table links */
.table a {
    color: var(--accent-primary);
}

.table a:hover {
    color: var(--accent-hover);
}

/* ===== Alerts ===== */
.alert {
    border-radius: 6px;
    font-size: 0.875rem;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--success);
}

.alert-warning {
    background-color: rgba(234, 179, 8, 0.1);
    border-color: rgba(234, 179, 8, 0.3);
    color: var(--warning);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--accent-primary);
}

/* ===== Badges ===== */
.badge {
    font-weight: 500;
}

.badge.bg-primary {
    background: var(--accent-gradient) !important;
}

.badge.bg-success {
    background-color: var(--success) !important;
}

.badge.bg-warning {
    background-color: var(--warning) !important;
}

.badge.bg-danger {
    background-color: var(--danger) !important;
}

/* ===== Modals ===== */
.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.modal-header {
    border-bottom-color: var(--border-color);
}

.modal-footer {
    border-top-color: var(--border-color);
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* ===== Dropdowns ===== */
.dropdown-menu {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--text-secondary);
}

.dropdown-item:hover, .dropdown-item:focus {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* ===== Error Boundary ===== */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, var(--danger);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred."
}

/* ===== Checkbox Styles ===== */
.darker-border-checkbox.form-check-input {
    border-color: var(--border-color);
    background-color: var(--bg-tertiary);
}

.form-check-input:checked {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* ===== Form Floating ===== */
.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--text-muted);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.form-floating > label {
    color: var(--text-muted);
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== Selection ===== */
::selection {
    background-color: var(--accent-primary);
    color: white;
}

/* ===== List Groups ===== */
.list-group-item {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.list-group-item:hover {
    background-color: var(--bg-hover);
}

/* ===== Pagination ===== */
.page-link {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.page-link:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.page-item.active .page-link {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* ===== Inputs ===== */
input, textarea, select {
    color-scheme: dark;
}

/* ===== Input Group ===== */
.input-group .btn {
    border-color: var(--border-color);
}

.input-group .btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.input-group .btn-outline-secondary:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    background-color: transparent;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

.breadcrumb-item a {
    color: var(--accent-primary);
}

.breadcrumb-item.active {
    color: var(--text-muted);
}

/* ===== Spinner ===== */
.spinner-border {
    color: var(--accent-primary);
}

/* ===== Container ===== */
.container-fluid {
    color: var(--text-primary);
}

/* ===== Table Responsive ===== */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
}

/* ===== Override Bootstrap table-light ===== */
.table-light,
.table thead.table-light th,
.table thead.table-light,
.table tfoot.table-light,
.table tfoot.table-light tr,
.table tfoot.table-light td {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-muted) !important;
    border-color: var(--border-color) !important;
}

/* Override Bootstrap table hover */
.table-hover > tbody > tr:hover > * {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
    --bs-table-accent-bg: var(--bg-hover) !important;
}

/* ===== Buttons ===== */
.btn {
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

.btn-outline-primary {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-outline-primary:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-outline-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8125rem;
}

/* ===== List Group Dark Mode ===== */
.list-group-item.bg-light {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

/* ===== Text Utilities ===== */
.text-muted {
    color: var(--text-muted) !important;
}

/* ===== Badge Overrides ===== */
.badge.bg-secondary {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

.badge.bg-info {
    background-color: rgba(59, 130, 246, 0.2) !important;
    color: var(--accent-primary) !important;
}

/* ===== Invoice Logo ===== */
.invoice-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.invoice-logo span {
    font-weight: 700;
    font-size: 1.5rem;
    color: white;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.invoice-logo-img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
}

/* ===== Layout Fallback Styles ===== */
/* These ensure layout works even if CSS isolation fails */
.page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sidebar {
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
}

.sidebar img {
    max-width: 40px;
    max-height: 40px;
    object-fit: contain;
}

@media (min-width: 641px) {
    .page {
        flex-direction: row;
    }

    .sidebar {
        width: 240px;
        height: 100vh;
        position: sticky;
        top: 0;
        flex-shrink: 0;
        overflow-y: auto;
    }
}